Everyone is cheering the Senate's 89 to 10 vote to block large institutional investors from buying single family homes.
At first glance, it sounds like a major victory for housing affordability.
But before celebrating, it is worth looking at the actual math behind the policy.
Because the numbers tell a very different story.
The United States has roughly 82 million single family homes.
Large institutional investors own somewhere between 450,000 and 574,000 of them.
That equals about 0.5 percent to 0.7 percent of the total housing stock.
In other words, the group being targeted owns less than 1 percent of the market.
Even if every one of those homes were suddenly forced onto the market tomorrow, the impact would be limited.
Under the proposal, divestment would happen over a 7 year period.
That would add roughly 70,000 homes per year.
In a country where roughly 4 million to 6 million homes sell every year, that represents about 1 percent of annual sales.
That is not a structural change to the housing market.
Meanwhile, the real force in the single family rental market is not hedge funds.
Small investors who own between 1 and 9 properties control roughly 14 million single family rentals.
That is more than 20 times the number owned by large institutional investors.
So if investors are the problem, the legislation is targeting the smallest slice of the investor universe.
But the deeper issue is something else entirely.
The United States simply has not built enough homes.
For more than a decade, housing construction has lagged population growth and household formation.
Most economists estimate the country is short somewhere between 3 million and 5 million homes.
You cannot regulate your way out of a supply shortage.
You have to build your way out of it.
That means faster approvals, fewer regulatory bottlenecks, and policies that actually increase housing supply.
So while banning institutional buyers may generate strong political headlines, it does very little to address the underlying math of the housing market.
We do not have a corporate ownership problem.
We have a housing supply problem.
And until that changes, affordability will remain out of reach for many families.